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GPIO Mode

Table 4. SN65LVCP114 EVM GPIO Mode Settings

Ref Des Symbol GPIO Mode Pin Description

JMP8 I2C_A0_EQA1 3 level control for EQ gain of port A

JMP6 I2C_A1_EQB1 3 level control for EQ gain of port B

JMP3 I2C_A2_EQC1 3 level control for EQ gain of port C

JMP10 EQ_A0 3 level control for EQ gain of port A

JMP13 EQ_B0 3 level control for EQ gain of port B

JMP16 EQ_C0 3 level control for EQ gain of port C

LPA Default setting, Loopback disabled

LPB Default setting, Loopback disabled

LPC Default setting, Loopback disabled

SEL0 Default setting, port B is selected on Lane 0

SEL1 Default setting, port B is selected on Lane 1

SEL2 Default setting, port B is selected on Lane 2

SEL3 Default setting, port B is selected on Lane 3

JMP2 CS Don't Care

High, normal operation

JMP5 PDZ

Low, powers down the device, inputs off and outputs disabled, resets the I2C

High, enables the same data on line side (Port C) to be output on both fabric side ports

JMP7 DIAG (Port A & B)

Low, normal operation

LN_EN_0 Default setting, lane 0 of ports A, B & C are disabled

LN_EN_1 Default setting, lane 1 of ports A, B & C are disabled

High, enables lane 2 of ports A, B & C

JMP26 LN_EN_2

Low, disables lane 0 of ports A, B & C

LN_EN_3 Default setting, lane 3 of ports A, B & C are disabled

DIS_AGC_A Default setting, AGC loop enable

DIS_AGC_B Default setting, AGC loop enable

DIS_AGC_C Default setting, AGC loop enable

VOD_A Default setting; VOD output range = 600 mV

VOD_B Default setting; VOD output range = 600 mV

VOD_C Default setting; VOD output range = 600 mV

GAIN_A Default setting; Receiver Gain = 0.5

GAIN_B Default setting; Receiver Gain = 0.5

GAIN_C Default setting; Receiver Gain = 0.5

FST_SW Default setting; fast switching, the idle outputs are squelched

Configures the device in I2C or GPIO mode of operation

JMP1 I2C_SEL High, enables I2C mode

Low, enables GPIO mode

SLLU160–December 2011 SN65LVCP114 Evaluation Module (EVM)

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